Legged Robot with Tensegrity Feature Bionic Knee Joint.

Legged robots, designed to emulate human functions, have greatly influenced numerous sectors. However, the focus on continuously improving the joint motors and control systems of existing legged robots not only increases costs and complicates maintenance but also results in failure to accurately mimic the functionality of the human skeletal‒muscular system. This study introduces a bionic legged robot structure that leverages the tensegrity principle, drawing inspiration from the human leg's structural morphology and kinematic mechanisms.

Deflecting and routing nematicons via orientation programmable liquid crystal array.

By designing a liquid crystal cell with comb electrode structure, the alignment modulation of nematic liquid crystal in the cell can be realized after the electric field is applied. In different orientation regions, the incident laser beam can deflect at different angles. At the same time, by changing the incident angle of the laser beam, the reflection modulation of the laser beam on the interface of the liquid crystal molecular orientation change can be realized.

Ultra-broadband holography in visible and infrared regions with full-polarization nondispersive response.

Holography is promising to fully record and reconstruct the fundamental properties of light, while the limitations of working bandwidth, allowed polarization states, and dispersive response impede further advances in the integration level and functionality. Here, we propose an ultra-broadband holography based on twisted nematic liquid crystals (TNLCs), which can efficiently work in both the visible and infrared regions with a working spectrum of over 1000 nm. The underlying physics is that the electric field vector of light through TNLCs can be parallelly manipulated in the broad spectral range, thus enabling to build the ultra-broadband TNLC hologram by dynamic photopatterning.

Glycyrretinic acid blocks cardiac sodium channels expressed in Xenopus oocytes.

Ethnopharmacological Relevance: Licorice has been used to treat many ailments including cardiovascular disorders in China for long time. Recent studies have shown that the cardiac actions of licorice have been attributed to its active component, glycyrretinic acid (GA). However, its mechanism remains poorly understood.

The role of hERG1 K+ channels and a functional link between hERG1 K+ channels and SDF-1 in acute leukemic cell migration.

Stromal cell-derived factor-1 (SDF-1) and its unique receptor, CXCR4, regulate stem/progenitor cell migration and retention in the bone marrow and are required for hematopoiesis. Recent studies found that hERG1 K(+) channels were important regulators of tumor cell migration. In this study, we investigated whether SDF-1 induced acute leukemic cell migration associated with hERG1 K(+) channels.